A device used to indicate that remote connection to an interfacing computer by Dataphone or Dataset is possible.
种显示设备,可
数据电话或数据装
(常是调制解调器)指
台接口计算机的远程连接。
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A method of interfacing with hardware that involves repeatedly reading a status register until the device has reached the awaited state. Device drivers are either polling or interrupt-driven, with the latter being more generally preferred.
种硬件交互方法,不断读状态寄存器,直到设备进入等待状态。设备驱动程序不是轮询的就是中断驱动的,后
种越来越成为首选的。